Washington — The Senate Armed Services Committee approved an amendment to the annual military spending bill that would require the Defense Department to change the names of military bases and assets named for Confederate leaders. A source familiar with the proceedings confirmed to CBS News that the GOP-led panel on Wednesday approved the amendment to the National Defense Authorization Act (NDAA) offered by Democratic Senator Elizabeth Warren of Massachusetts via voice vote. According to a summary of the NDAA released by the committee Thursday, the measure requires the Defense Department to rename posts and assets — streets, aircraft, ships, and...